Re: [Discuss-gnuradio] UHD USRP Source for B2x0 overflows File Sink

[Murphy, John]

So /dev/null works, I do not know what that really says about this
though. Is there a difference between using dev/null and just running
any non-disk-write flowgraph? Because I know I can run a flowgraph at
16 MS/s decimated to 8 MS/s, with never a single O even for hours of
operation.
With 16 GBytes of RAM one can't somehow in GR buffer up the 64
MBytes/sec data flow during one of those hiccups?
What do all those "min output buffer" and "max output buffer" params
on the advanced tabs of the blocks do?
- John

On Thu, May 7, 2015 at 3:43 PM,  <address@hidden> wrote:
> I looked at their blurb on that drive, and its *sustained* rate comes out to
> about 69Mbyte/second.  Sure, it'll take bursts at screaming-fast rates,
> because, like the Linux kernel, it has a whacking great write-behind buffer.

> Try specifying a filename of "/dev/null", which will bypass your disk
> subsystem entirely, and give you some idea of what you can sustain in the
> absence of actual disk-subsystem writes.